Multiple trasher



Oct. 22, 1929. n D. H. GlLsoN 1,732,885

MULTIPLE TRASHER Filed May 29. 1926 I N VEN TOR. lJ/rra/v G/Lsonf.

A TTORNEYS.

llatented Oct. 22, 1929 UNITED STATES PATENT OFFICE DAYTON H. G'rILSON,V 0F RUSHVILLE, INDANA, ASSIGNOR OF rO'll'E-HALJ- TO FRANK I?. ,MULLIN OF RUSHVILLE, IIBTDIAJNXL` MULTIPLE -TRASHER Continuation of application Serial No. 69,411, filed November 16, 1925. Serial No. 112,88.

and it will prepare the ground ahead of the plow (thereby functioning as a jointer).

rlhe chief feature of the invention consists in the elimination of the scrapers or cleaning devices heretofore associated with jointer discs employed upon plows, and the elimination of jointers generally by thc use of a rotary curved disc so positioned and so arranged with respect to the line of draft that allA of the operations of the disc and scraper l n n v a and the Jointer are secured with a single cutting element which is as a result, nonclogging and self-cleaning- Another important feature of the invention consists in the mounting of a plurality of the aforesaid trashers upon a support which is relatively rigid and of .substantially universal adjustment and which will, when adjusted, be maintained in the desired position upon the plow structure, whereby when n s n the latter 1s associated with a tractor, the

increased speed and tractor effort applied will not upon engagement of obstruction disahgn or change the mounting of the J invention.

This invention is a continuation of the invention disclosed in the copending application Serial No. 69,411, tiled November 16, 1925, but herein a plurality thereof is illustrated in united and rigidly supported separat-ed relation.

The full nature of the invention will be understood from the accompanying drawings and the following description and claims:

In the drawings Fig. 1 is a perspective view of a tractor plow showing the invention applied thereto. Fig. 2 is a top plan vi ew of the trashing discs and the support therefor. Fig. 3 is a rear elevation of the same, one of the discs being removed to show the This application filed May 29, 1926.

immediate spindle support therefor. Fig. is an elevational view with parts in section of one form ofadjustable disc support.

Fig. 5 is atransverse section taken on line 5-5 of Figga and in the direction of the arrows.

In F ig. ,1, 10 indicates the hitch whereby the tractor drawn plow is connected to the tractor and associated therewith are the plow beams 11each supporting a mold board 12 aud plow share 13. Depending from each of the plow.` beams in the customary manner is a yiomterttem 1&1 having the angular offset- 15 and thje lower extension 16. The entire construction is supported by the wheels 17 carriedliy the axle 18. The foregoing is a standard tractor plow and to the same is applied` an attachment for the following pur'- pose.

"The present invention seeks to accomplish the cutting of trash, weeds, corn stalks, vines andthe like so that they will not clog the plow and will not clog the cutter, and also to form a preliminary furrow ahead of the main furrow and accomplish jointer action, also to be self-cleaning in the sense that a scraper or a shovel heretofore associated with a disc is unnecessary, and to secure and maintain in the adjusted position a plurality of the afore said `trashing and furrowing discs, even though subjected to considerable lateral stress by reason of the plow being drawn by a tractor and meeting with considerable obstruction.

The attachment consists of a common supporting and spacing bar 2O which is provided with a plurality of jointer stem supporting brackets 21, which by means of suitable clamping bolts and nuts 22, rigidly clamp the' support 2() upon each of the depending jointer stems. A plurality of slots 23 secure the desired adjustment `of the support 2O with the jointer stems in alignment and in predetermined spaced relation. Extending angularly from the spacing support 20 is a support 24 and another support 1211, the former being integral with one end of the support 2O and the other being secured in rigid relation to the opposite end thereof simultaneously with the mounting of the bar or spacing support 2O upon the adjacent jointer stem. Each of the clamping brackets 21 includes a lateral flange 25 at its upper and vlower edges forfpartially embracing the support 20.

At or near the free end of the angular support or extension 124 or 24, respectively, there is secured a bracket 26 having lateral flanges 27 whereby lembracement of the angular' support 24 or 124 is secured. Said base 26 is secured to said support by suitable means 28 such as clamping bolts and nuts. Within said base 26 is a frusto--conical socket 29 which is provided with an adjusting lock bolt 30. The base also is provided with a reduced coaxial aperture 31 through which extends a spindle or locking `bolt 32 carrying the clamping nut 33 and carried by the disk support 34.

One form-of the anti-friction type is illustrated in Fig. 4. In the Fig. 4 34 indicates a body portion having a. tapered frusto-conical extension 35 receivable vby the frusto-conical socket 29. Coaxial therewith and rigidly secured to the body portion 34 is the bolt 32 carrying nut 33. Extension 35 is notched at 36 to receive bolt 30.

The body portion 34 is extended laterally and includes a central opening 37, the axis of which is transverse to the axis of the spindle 35. Said opening is enlarged at 38 and 40 and forms thrust shoulders therebetween. The opposite end is externally reduced as at 41. An apertured capi42, including the peripheral flange 43 encircles the reduced end 41 of the body 34 and headed bolt 44 passes through the stepped enlarged open'- ing 37, 38 and 39. Mounted on the bolt and extending into said apertures is a rotary shaft and disk clamp-45 having successively enlarged portions corresponding to the enlargements of the axial opening, and interposed at the thrust shoulders are the antifriction thrust bearings 46 and 47 and the roller bearing 39, whereby relatively free running is secured and end thrust wear is reduced. The opposite end of the rotary clamp 45 is provided with a groove 48 for encircling,

' without engagement, the other projecting end of the body 34. Bearing against the opposite end of clamp 45 is the trashing disc 49 securedby means of the clamping washer 50, in turn maintained in clampingrelation by a nut lmounted upon the threaded end of the bolt 44. In the foregoing construction the cap 42 and peripheral extension 43 are rigid with the bolt 44 and clear or do not engage the body 34. Thus, all of the-inner relatively rotative bearing surfaces are protected from dirt, trash and the like.

The invention claimed is:

1. Ina multiple share plow, the combination'of a. plurality of spaced plow shares, a similar number of ointer stems ahead of the same a trashinr'disk ositionable ahead of each plow share, and a common means supporting said disks upon the stems and maintaining said disks in spaced relation relative to the share spacing.

2. The combination with a plow including a plurality of beams, a share supported by each, and a jointer stem supported by each beam forwardly of the share, of a multiple trasher attachment including laterally arranged framework supported by said jointer stems, a trasher disk for each share, an arm for each disk supported by said framework, a connection between each arm and supporting disk and having an axial adjustment transverse to the axis of disk rotation, and means for maintaining each of said disks in the axially adjusted position.

3. A device as defined by claim 2, characterized by the connection between the lateral framework and the jointer stems being adjustable in character for bodily adjusting the framework and said disks relative to the shares.

4. A device as defined by claim 2, characterized by eac-h arm extending approximately forty live degrees to the Alateral framework.

5. A device as defined by claim 2, characterized by each connection between the arm and supporting disk including an adjustable stop for maintaining predetermined angular positioning of the disk relative to the line of draft.

In witness whereof, I have hereunto alixed my signature.

DAYTON H. GILSON. 

